.process-content{
    position: relative;height:20px;box-sizing: border-box;padding:0;width: 100%;margin:0 auto;border:1px solid #F00;background-color:#FFF;overflow: hidden;
}
.process-content span{
    position: absolute;display: inline-block;right:0;color:#F00;
}
.process-content > div{
    overflow: hidden;width:0px;background-color:#F00;position: absolute;background-color:#F00;top:0;bottom:0;
}
.process-content >div > span{
    color:#FFF;
}